Humber/Ontario Real Estate Course 4 Exam Practice

What is a recommended practice to avoid contamination in a cottage's drilled well drinking water?

1. Ensure the well casing is not visible above ground level.

2. Ensure any well openings are not sealed from the outside.

3. Make sure the well seal and cap prevent water entrance easily.

4. Make sure the ground around the well slopes towards it.

5. Avoid any external barriers around the well casing.

6. Place a water filtration system inside the well itself.

The correct answer is: Make sure the well seal and cap prevent water entrance easily.

To prevent contamination in a cottage's drilled well drinking water, ensuring that the well seal and cap are effective in preventing water entrance is essential. A proper seal and fitted cap are designed to keep out debris, insects, and surface water, which could otherwise introduce contaminants into the well. This is particularly important because any breach in these protective features could lead to harmful substances entering the drinking water supply, posing health risks to users. The integrity of the well seal and cap is a primary line of defense against contamination, making it a critical practice for maintaining the safety and potability of well water. Other options might appear relevant to well maintenance or safety, but they do not directly address the need for preventing external contaminants from entering through the well's openings like a proper seal and cap do.